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(No Model.) 3 Sheetsf-Sheet: 1.

. v B; ARNOLD. MAUHINBFOR MAKING AND KNOTTING F-RINGES.

o. 504,315. Patented Sept. 5, 189a.

(No Model.) a Sheets-Sheet? V BVARNOLD;

MACHINE FOR MAKING AND KNOTTING FRING'ES;

Ewen/tor I Patented Sept. 5, 1893.

(No ModeL) 3 Sheets-.-Sheet 3;

B. ARNOLD. I MACHINE FOR MAKING AND KNOTTING FRINGES.

Patented Sept. 5, 1893.

UNITED I STATES PATENT OFFICE.

BENJAMIN ARNOLD, OF EAST GREENWICH, RHODE ISLAND, ASSIGNOR TO THEMERIDEN CURTAIN FIXTURE COMPANY, OF MERIDEN, CON- NECTIGUT.

MACHINE FOR MAKING AN KNOTTING FRINGES.

SPECIFICATION forming part of Letters Patent ve. 504,31 5, datedSeptember 5, 1893. Application filed December a, 1892. eena 110.4541210-on model.)

and exact description thereof, reference being had to the accompanyingdrawings, and to the letters and numerals of reference marked thereon,which form a tion.

This invention relates to the class of mechanism for arranging thethreads that form the skirt of afringe, and tying them in knots, in theprocess of making the fringe. It is illustrated in the accompanyingdrawings.

Figure 1, is a perspective view of the principal devices, or those partsused directly in connection with the threads in the process ofarrangingthem and tying the knots. Fig. 2, is atop View of some of theparts seen in Fig. 1. Fig. 3, represents two cams and their levers, thatoperate the hook that draws up the knots. Figs. 4 to 20 show thedifferent positions taken by the devices and threads in making theknots. Fig. 21, represents the cam and its connection with the twolevers in Figs. 1 and 2, that loop the threads into a knot. Fig.22,shows the cam that moves the main shaft intermittently, by means of aratchet Wheel and pawl. Fig. 23, illustrates the construction of afringe on the edge of a piece of cloth.

The following description of the mechanism and its operation, willenable others skilled in the art, to construct and use it. It isdescribed as it operates in connection with a fringe in the process ofbeing woven. A horizontal shaft A, is held in bearings 01, d, secured tothe top of the machine and a circular plate D, having a series ofopenings 0., made through it near its periphery is made fast on theinner end of the shaft. A sleeve B, is fitted to turn easily on theshaft A, and extends from the plate 0, to near the outer end of theshaft. The sleeve B, has a circular plate 0, secured on its inner endand two smaller plates I, J, having ratchet teeth made in theirperipheries are made fast on the outer part of this specificaend of thesleeve B. The plate 0, has a series of openings made through itcorresponding in number and position with the openings at,

.in plate D, and they are cut out through the edge of the plate to formhooks e, and curved in the sleeve B, and is made fast in the shaft A.The sleeve B, is driven by a lever h, swinging on the shaft A, outsideof the two ratchet plates I, J, by means of two pawls f,

b, which catch into the teethof the plates one on each side of the leveras the teeth of the two plates face in opposite directions. A reliefplate j, is made fast to the top plate of the machine and extends up farenough in front of plate J, to raise the. pawl 19, out of the notch inthat plate when it has moved it over to the right one notch, and allowsthe plates to stop while the lever h, carries the pawl f, over farenough to catch another tooth in the plate I. A thread detaining deviceE, composed of two springs having their upper portions bent to form apart of a circle to agree with the centers of the openings at, in

plate D, is held by two screws in the top of the machine just outside ofthe plate D, to receive the threads in the openings in the plate as itrevolves, and-detain the same in plate D, after having been cut by theknife H, with aslight friction sufficient to keep them in place on theother side of the plate while the knot is being tied in them. The feetof the two springs E are made at different angles so that by screwingdown on the inner screw the two springswill be pressed together and thefriction on the threads between them increased. The cutting of thethreads in the books is done at the proper time by a knife H, held on aswinging arm M, the sharp bevel end of the knife being thrust throughthe slot 0, that maybe opposite to it, and severing the bight of theloop of the thread where it crosses the slot. This motion is given tothe knife H, by a connecting bar G, which has a hook atits left end thatis caught by a pin The sleeve B, turns the shaft A, by 60 means of a ping, which passesthrough a slot.

m, in the arm K, as that arm moves to the left with arm F, to fold thethreads; after drawing the bar G far enough to accomplish the cutting ofthe threads a projection 0, on bar G, strikes against a pin it, fast inthe plate below and is thrown off of the pin m, leaving the arm M, withknife II, free to be drawn pack by the spring W, and the plates free tourn.

In Figs. 1 and 2 is shown the method of tying the threads of the skirtofa fringe while it is being woven and the way in nhich the first andfourth picks of thread are selected and brought together to be tied inone knot. The needle L, that puts the filling c, in the warp thread D,between the beats of the lay, passes through one of the openings at, inthe plate D, and deposits its loop of thread on a hook e, of plate 0,and each opening a, has two picks or passages of the needle L, passthrough it in the following order: The needle passes through the warpand plate D, and leaves its loop on one hook e, and draws back. Then theplates D, and O, are moved back the space of one opening a, and theneedle passes through the next opening and leaves its loop on a hook e,opposite to it and draws back. Then the plates D and 0, move forward twoopenings and the needle passes through the opening that is brought upand leaves its loop on a hook. Then the plates turn back again oneopening which brings up the opening through which the first abovedescribed passings of the needle was made, which brings the threads ofthe first and fourth passages in the same opening a, and on same hook e.In this Way the thread of each pick is associated with the third onefrom it. The forward and back motions of the plates D and C, are givento them by means of the ratchet plates I, J, as shown in Fig. 22. Thecam 0, moves the arm h, by the lever E, carrying a roll at, that runs ina groove in the cam C, and moves the bar P, forward at one pick of theneedle and back at the next as the cam makes one revolution for everytwo picks of the needle. The pawl b, on lever h, moves the plate J, backthe space of one tooth and then is raised out of its notch by the platej, while the upper end of the lever continues to move over so as tocatch the pawl f, in another tooth of the plate 1. After the nextpassageof the needle the top of lever h, moves over toward the front the spaceof two of the teeth in plate I, which represents two of the openings at,in plate D. A short motion is allowed to the plate 0, independent of theplate D, by the slot in the sleeve B, in which plays the pin, g, in theshaft A, to allow the hooks e, to move forward a little way and catchinto the thread in the needle L, while it is in one of the openings a,in plate D, without moving that plate. This short motion is given by theprojections b, on cam E at the end of each long motion. The properamount of friction required to prevent the plates D, and 0, from movingexcept as they are turned by the ratchet plates I, .I, is applied in theboxes d, d, one being on shaft A, and the other on sleeve 13. As fastasthe threads are arranged in proper order in the openings at, of plate D,they are carried down to the tying devices the first of which are thethree pins Z, 7c, and y, between which the threads in the openings a,are successively brought with the pins y and Z, back of the two threadsand the pin k, in front; see Fig. 1. The pin Z, is held in the end ofarm F, which swings on a pivot at its other end which is fast in the topof the machine. The pin 70, is held in the curved end of arm K, which ispivoted at its other end in like manner to arm F. The pin y, is held inarm K, on the opposite side of the curve at the end, to the pin 70. Thetwo arms K, F, are moved over to the left with the threads between themto the position shown in Fig. 2 by means of a cam plate N, that swingson a pivot 25, fast in the top of the machine. This cam plate moves thetwo arms K, F, by the pin 19, in the former and the pin 7*, in thelatter, the pins working in slots in the cam plate N. The shape of theslots is designed to keep the pins 70, Z, apart in moving, and not bindon the threads. When the arms start from the position shown in Fig. 1the straight part of its slot moves the arm K, over directly, and thenthe pin 1), rests in the curved part of the slot, but the pin 7", doesnot move until it has reached the straight part of its slot, so that arm70, gets well over before arm F, is moved. The cam plate N, receives acircular motion by means of bar 0, connected with cam lever j, that hasa friction roll r in the groove of cam F, see Fig. 21. When the threadsand pins are in the position shown in Fig. 2, they are ready for thepassage of the hook bar R, which by reference to Fig. 3, will be seenpivoted at its lower end to a cam lever V pivoted in a step g, andhaving a friction roll f in a groove in the cam T, which gives an up anddown motion to the hook bar R. Near the upper end of the bar B, it isconnected by a bar U to a cam lever WV pivoted at Z that has a frictionroll d in the groove in cam S, by which the upper end of the hook bar R,is moved to the right and to the left. The grooves in the cams arearranged to give motion and rest alternately to the friction rolls inthem and set with regard to each other so that the motion of the roll inone cam shall take place while the roll in the other cam is resting andvice versa. In this way the line of motion of the hook shown in Fig. 20,is produced. In this figure the line is shown as a succession of angularmotions for clearness, but in practice the corners of the grooves arerounded away so that one roll begins its motion before the other hasstopped and the line of motion is resolved into a succession of curvesstopping and starting gradually.

The motions of the hook R, are as follows: In Fig. 4, the hook haspassed up. In Figs. 5

and 6, it has passed to the left over thread 2. In Figs. 7, 8 and 9, ithas moved down and farther to the left under thread 3, carrying thread2, with it. In Figs. 10, 11, 12, it has passed up, back to the right,and downv carrying thread 3 with it in the curve in the back of thehook, and in Figs. 13, 14 and 15, it has moved st-ill farther to theright, then up and back left, over thread 1. In Fig. 16, it has moveddown carrying thread I downward of the hook, and the drawing of the freeleg of the loop 1, out of the loop around pin it, and into thestationary clamp Y, where it is detained with sufficient friction tocause the hook pulling in the loop below, to draw up the knot around thepin is, as in Fig. 18, by the other leg of the loop in the hook, the pinZ, having been drawn out of the threads at the proper time, by the roda, attached to the arm F, which is caught at its lower end by the bar U,in descending, and when the knot is sufficiently drawn up around pin 70,as in Fig. 19, that pin is drawn out by the rod 0', attached to the armK, which is caught by the bar U, and drawn out of the knot. The

hook R, continues to draw up the knot, after the pin 71;, is drawn out,by drawing down the loop below the clamp until the end of the loop ispulled out of the clamp, the pressure of which, regulated by the screwin the upper end of the clamp, determines the tightness of theknot.Theknottied,isthesameasthe single two-bight knot tied in a single cord,only in this case it is tied in two cords, taken as one, and is known asthe overhand-knot.

Having thus described the construction and operation of myimprovements,lclaim as my invention 1. In a machine for tying knots in fringes, acircular plate having a series of openings made in it to receive thethreads to be tied, in combination with means for giving said plate aforward rotating motion for the space of two of said openings, and abackward rotary motion of the space of one of said openings alternately,a needle to carry the threads through the openings and means for holdingthe loops of the threads substantially as specified.

2. In a machine for making knots in fringes, a circular plate havingopenings made in it to form a series of hooks around its periphery incombination with mechanism to rotate said plate forward the space of twohooks and backward the space of one hook alternately, with a needlehaving a reciprocating motion to deposit the thread to be tied on saidhooks substantially as set forth.

3. In a fringe knotting machine, a circular plate having a series ofhooks on its periphery in combination with a double ratchet plate havingthe teeth of one part made facing in the opposite direction to the teethin the other part, a lever carrying two pawls, one of said pawlsengagingin one set of ratchet teeth and the other pawl engaging in theother 5. In afringe knotting machine, a circular plate having a seriesof openings made in it to receive the threads to be tied in combinationwith a clamp arranged to receive the threads by turning of said plateand means for turnin g the plate substantially as set forth.

6. In a fringe knotting machine, a circular plate having a series ofhooks on its periphery to hold the threads to be knotted, a needle toplace said threads on the hooks, in combination with a clamp arranged toreceive the threads by the motion of said plate and means for moving theplate substantially as set forth.

7. In a fringe knotting machine, the combination of a circular platehaving hooks on its periphery to receive the threads to be tied, aneedle, to place the loops of said threads on the hooks, two levers eachpivoted at one end and having in their free ends pins to receive thethreads between them as the plate turns, and means to move said leversand fold the threads into an S or double looped form, and means to turnsaid plate substantially as described.

8. The combination in a fringe knotting machine of a circular plate withhooks to receive the threads to be tied, a needle to deposit the loopsof said threads on the hooks, levers with pins to receive the threadsfrom the hooks and arrange them in an S or double looped form, aknotting hook to form an over hand knot of said threads, and means togive said knotting hook reciprocating motions, both vertically andhorizontally, substantially as set forth.

9. The combination in a fringe knotting machine of a circular plate withhooks to receive the threads to be tied, a needle to deposit the loopsof said threads on the hooks, levers with pins to receive the threadsfrom the hooks and arrange them in an S or double looped form, aknotting hook to form an over hand knot of said threads, and means togive said knotting hook reciprocating motions, both vertically andhorizontally, and a clamp arranged to catch and detain one leg of theloop drawn down in finishing the knot substantially as specified.

' BENJ. ARNOLD. Witnesses:

E. B. READ, J AMES E. ARNOLD.

